tree bc8aa043f1770f406c8d80470ca995efa4a37a22
parent 8bb89b1502678d941d7e87e032ee7ecd5d4c4cc3
author Hannah Williams <hannah.williams@intel.com> 1527440305 -0700
committer chrome-bot <chrome-bot@chromium.org> 1527667360 -0700

UPSTREAM: libpayload-x86: i8042: fix i8042_data_ready_ps2 and i8042_data_ready_aux

keyboard_disconnect was called without keyboard_init being called and in this
case keyboard_havechar returns true because i8042_data_ready_ps2 is
dereferencing uninitialized variable ps2_fifo from within fifo_is_empty causing
keyboard_disconnect to be stuck in this while loop.
while (keyboard_havechar())
    keyboard_getchar();

BUG=b:80299098
TEST=Check if the normal mode path in depthcharge is not causing a hang

Change-Id: I7844e880c066f22814fecc0c4c5b77896cbd8ab3
Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Commit-Id: b81362a82e40fac5c6debd8e0034feacb00d5e0a
Original-Change-Id: I944b4836005c887a2715717dff2df1b5a220818e
Original-Signed-off-by: Hannah Williams <hannah.williams@intel.com>
Original-Reviewed-on: https://review.coreboot.org/26590
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1077749
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>